【单选题】
A <{p}><{font _mstmutation="1" _msthash="20496" _msttexthash="10524592"}>变动成本<{/font}><{br/}><{/p}>
B <{p}><{font _mstmutation="1" _msthash="20500" _msttexthash="10835734"}>固定成本<{/font}><{br/}><{/p}>
C <{p}><{font _mstmutation="1" _msthash="20497" _msttexthash="11193221"}>生产成本<{/font}><{br/}><{/p}>
D <{p}><{font _mstmutation="1" _msthash="20501" _msttexthash="17989569"}>变动生产成本<{/font}><{br/}><{/p}>
查看更多
